Instructional design: ADDIE design model

Choose an instructional setting, a learning need or opportunity, and define/describe the likely learners within that setting. You can select an actual or hypothetical setting, situation, and learner population, but the analysis must include demographic data that actually correlate with your learner population.

Identify and describe the following:

Learning gap or learning opportunity to be addressed by the learning intervention.
Goal or goals of the intervention.
The learners (audience).
Learning environment and context.
Measurable Learning Outcomes (knowledge, skills, processes, procedures) students will be required to demonstrate after completion of the learning event.
Upon completion of the analysis phase/data collection, you must create terminal performance objectives using Bloom's Taxonomy verb hierarchy and classify each created objective using Bloom's taxonomy and Gagne's types of learning.

I need help with explaining how an instructional design theory or model (ADDIE, ASSURE, HPT, etc.) impacts instructions and the "added value" that it might bring a teacher's instructions. Is there a positive and negative way that this instructional theory or model may influence the delivery of the instruction?